This quiz contains MCQs R Vectors.

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### MCQs R Vectors

- The following command can be used to print an object “x” in R.
- What is the output of the following R code? r <- 0:10 r[2] ________ operator is used to create integer sequences. What is the output of the following R code? y <- 0:5 vector(y) y[3] How can one define ‘infinity’ in R Language? How can one define ‘undefined value’ in R Language? What is the output of the following R code? x <- c(“a”, “b”) as.numeric(x) Identify the wrong statement: If a command is incomplete at the end of a line, R will give a different prompt, by default it is _____ Which of the describe R Language best Which function can you use to create a different plot for each type of cut of diamond? A data analyst inputs the following code in RStudio: sales_1 <- 100 * sales_2 Which of the following types of operators does the analyst use in the code? What are ggplot2, tidyr, dplyr, and forcats all a part of? Which tidyverse package is used for data visualization? An analyst is organizing a dataset in RStudio using the following code: arrange(filter(Storage_1, inventory >= 40), count) Which of the following examples is a nested function in the code?
- Which tidyverse package contains a set of functions, such as select(), that help with data manipulation?
- Which of the following statements about vectors in R is correct?
- A data analyst finds the code mdy(10211020) in an R script. What is the year of the date that is created?
- A data analyst wants to combine values using mathematical operations. What type of operator would they use to do this?
- A data analyst wants to store a sequence of data elements with the same data type in a single variable. What R concept allows them to do this?

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MCQs R Vectors 4